Slow Release Fertiliser - Soil Component
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Everything we do is designed to get your order to you safely and happily.
🌿 Packed with care in Bristol, UK
⭐ Loved by thousands of happy Sprouts customers
📦 Royal Mail Tracked delivery
💚 Independent & Real Living Wage Employer
If your plant arrives damaged or unhappy, we’ll put it right. Find out more here
Every plant is carefully packed by our small, plant-loving Bristol team using protective, mostly plastic-free packaging.
Occasionally, you may find reused bubble wrap – this has been donated to us, and we encourage you to reuse it too.
Orders are usually packed and dispatched within 2–4 working days. We may occasionally delay dispatch during periods of extreme weather to protect your plants. We always prioritise plant health over speed of delivery.
Delivery is £4.99 for any number of items, or free on orders over £60. We deliver across the UK only.
We also offer local, bike-powered delivery in Bristol for £4.99 via Pedal Collective, a gentler option for plants and the planet.
We believe in paying people fairly, that’s why we’ve been a Real Living Wage Employer from the very beginning. We’re an independent Bristol business, packing every order ourselves.
Supporting us means supporting fair work.
Questions before ordering? Just drop us a message – we’re always happy to help.
Head to our contact page and fill in the contact form and one of the team will be in touch shortly
A powerful and easy way to bring everything your plant needs to feed! Lasting 8-9 months, all you need is a light sprinkle of this excellent, well rounded slow release fertiliser.
We've been working hard to find the best possible fertiliser to compliment our Semi-Hydro mix and we came up with an 8-9 month slow release that provides all the required nutrients and minerals for brilliant root support and plant health. Our fertiliser is a hearty NPK of 11-21-9 +6% Mg! It’s packed full of delicious nutrients to make your plants thrive.
Maximum recommended dosages: 2% of total mixture volume. For further advice, feel free to contact us.
About Soil Ninja
From worm castings to plain old perlite, Soil Ninja have all the soil components to make premium soil mixes. They know exactly what your plant's soil needs are and their species-specific mixes have got your back. Soil Ninja was created in Lincoln, by Jack in 2020.
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